I'm currently using Outlook 2016 and Windows 10. I had to create the account through Mail in the control panel. Then selecting email accounts then clicking new. It showed MailEnable server in there as an option under other.

We currently have about 30 users on the MAPI client, and that number is going to be growing quickly. At my location, where the server is located, we have no problems with the sent folder. At a remote location, same company, same anti-virus software and Sonicwall firewall, the users lose their sent i...